INTRODUCTION

The S6B0719 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 105 common and 160 segment driver circuits. This chip is connected directly to a microprocessor, accepts serial or 8-bit parallel display data and stores in an on-chip display data RAM of 105 x 160 bits. It provides a highly flexible display section due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it performs display data RAM read/write operation with no external-operating clock to minimize power consumption. In addition, because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display system with the fewest components.

FEATURES

 Driver Output Circuits

   - 105 common outputs / 160 segment outputs

 Applicable Duty-ratios

   - Various partial display

   - Partial window moving & data scrolling

 On-chip Display Data RAM

   - Capacity: 105 x 160 = 16,800 bits

   - Bit data "1": a dot of display is illuminated

   - Bit data "0": a dot of display is not illuminated

 Microprocessor Interface

   - 8-bit parallel bi-directional interface with 6800-series or 8080-series

   - Serial interface (only write operation) available

 On-chip Low Power Analog Circuit

   - On-chip oscillator circuit

   - Voltage converter (x3, x4, x5 or x6)

   - Voltage regulator (temperature coefficient: -0.05%/°C or external input)

   - On-chip electronic contrast control function (64 steps)

   - Voltage follower (LCD bias: 1/4 to 1/11)

 Operating Voltage Range

   - Supply voltage (VDD): 2.4 to 3.6 V

   - LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V

 Low Power Consumption

   - 200 mA Typ. (VDD = 3V, x5 boosting, V0 = 13V, Internal power supply ON and display OFF)

   - 20 mA Max. (during power save [standby] mode )

 Package Type

   - Gold bumped chip or TCP